Thermal vs Vortex vs Differential Pressure: How to Choose the Right Flow Measurement Technology
Selecting a flow meter is rarely about accuracy alone. In industrial applications, the real challenges include: Variable flow rates Pressure...
- Schedule. Mon - Sat 09.00 - 20.00
Liquid Analysis
Industrial pH Meters
Engineered for Data-Driven Water Quality Monitoring
Instrava Industrial pH Meters are designed for professional field monitoring and digital water quality data acquisition.
Beyond standard pH measurement, this device integrates large-capacity storage, RS485 Modbus RTU communication, USB data export, and optional 4G remote transmission and GNSS positioning — enabling structured, traceable, and scalable monitoring systems.
With IP65 main unit protection, IP68 electrode rating, and industrial-grade construction, the instrument is suitable for continuous deployment in demanding environmental and industrial applications.
For projects requiring reliable measurement and secure data management, Instrava delivers a complete field-ready solution.
Liquid Level Switch Description
Industrial pH Meters Applicable Scenarios
Instrava Industrial pH Meters are suitable for:
Municipal wastewater treatment monitoring
Surface water and environmental inspection
Industrial effluent compliance verification
Emergency field sampling and mobile testing
Aquaculture water management
River basin monitoring projects
Smart water and IoT-based environmental systems
With RS485 communication and optional DTU-4G module, the device can integrate into distributed monitoring networks.
Industrial pH Meters Engineering Advantages
High-Visibility Industrial Display
3.5-inch display
320 × 480 resolution
Clear visualization of measurement values and system status
Chinese / English language switching
Designed for professional field operation with improved readability.
Industrial-Grade Data Logging Capability
8GB storage capacity
Up to 280 million records (single parameter)
Adjustable storage interval: 1–60 minutes
Automatic daily file generation
Ensures long-term monitoring without data loss.
Structured Data Export System
USB connection generates virtual hard disk
Historical data accessible directly via PC
Export format: Excel files
One file per day for efficient filtering and analysis
Supports compliance documentation and structured reporting workflows.
Communication & Expansion Flexibility
Sensor communication: RS485 Modbus RTU
Single 485 or multi-drop 485 harness options
Default 5-meter cable (customizable)
Optional DTU-4G module for remote transmission
Optional GNSS positioning module
Mobile data access via OTG (optional)
Enables scalable integration into digital monitoring systems.
Industrial Protection & Portable Design
Main unit protection: IP65
Electrode protection: IP68
Aluminum alloy black carrying case
Instrument size: 167 × 80 × 30 mm
Weight: 263 g
Engineered for rugged field deployment and easy transport.
Dual Power Supply
Battery powered
External dual power configuration support
Provides flexible deployment for laboratory, vehicle-mounted, or remote field use.
Measurement Performance
pH range: 0 – 14 pH
Measurement accuracy: ±0.1 pH
Designed for stable and reliable water quality verification across industrial and environmental monitoring tasks.
Liquid Level Switch Parameter
Industrial pH Meters Technical Specifications
Measurement Parameters
| Parameter | Specification |
|---|---|
| pH Range | 0 – 14 pH |
| Accuracy | ±0.1 pH |
Display & Interface
| Parameter | Specification |
|---|---|
| Screen Size | 3.5 inch |
| Resolution | 320 × 480 |
| Language | Chinese / English |
| Operation | Full keypad (wet-hand operable) |
Data & Storage
| Parameter | Specification |
|---|---|
| Storage Capacity | 8 GB |
| Max Records | 280 million (single parameter) |
| Storage Interval | 1–60 min adjustable |
| Data Export | USB virtual disk |
| Export Format | Excel (daily file separation) |
| Mobile Data Access | OTG supported (optional) |
Communication & Expansion
| Parameter | Specification |
|---|---|
| Sensor Communication | RS485 Modbus RTU |
| Electrode Harness | Single 485 / Multi-drop 485 |
| Cable Length | 5 m standard (customizable) |
| 4G Module | DTU-4G optional |
| GNSS Positioning | Optional |
Mechanical & Environmental
| Parameter | Specification |
|---|---|
| Instrument Size | 167 × 80 × 30 mm |
| Weight | 263 g |
| Main Unit Protection | IP65 |
| Electrode Protection | IP68 |
| Operating Temperature | 0 – 40°C |
| Relative Humidity | ≤ 85% RH (non-condensing) |
| Carrying Case | Black aluminum alloy |
Designed for Smart Water Monitoring Systems
Instrava Industrial pH Meters combine measurement accuracy, digital storage capability, and network-ready communication to support modern environmental monitoring and industrial water compliance projects.
From standalone field verification to integrated remote data transmission systems, Instrava provides reliable instrumentation designed for structured data management and long-term operational stability.
Instrava OEM/ODM
Instrava Engineering & Customization Support
At Instrava, our instruments are developed with a strong focus on real industrial applications. Each product is designed to operate as a reliable component within measurement, control, and automation systems, rather than as a standalone device.
Our engineering team supports customers during product selection by evaluating process conditions, operating environments, and system requirements, ensuring stable and long-term performance in actual use.
In addition to standard configurations, Instrava offers flexible customization options, including measurement range, materials, output signals, communication interfaces, and installation methods. All custom solutions are engineered to meet industrial standards and application-specific demands.
We also support OEM projects and system integration, providing consistent product design, technical documentation, and long-term supply to ensure smooth integration and reliable operation throughout the project lifecycle.
For stable RS485 Modbus RTU communication:
Use shielded twisted pair cable.
Keep total bus length within recommended Modbus limits.
Apply proper termination resistors at both ends of the bus.
Avoid star topology; use daisy-chain wiring.
Ensure common ground reference to prevent potential difference interference.
Correct bus architecture significantly reduces communication errors in multi-device installations.
In standard Modbus RTU architecture, up to 32 devices can be connected per segment without repeaters.
For larger systems:
Use RS485 repeaters or isolation modules.
Segment the network to maintain signal integrity.
Ensure each device has a unique Modbus address.
Network planning should consider cable length, baud rate, and electromagnetic interference.
When using the optional DTU-4G module:
Install in areas with stable cellular signal strength.
Use industrial-grade SIM cards for continuous data transmission.
Configure heartbeat packets to maintain persistent connection.
Implement automatic reconnection logic within the DTU configuration.
For critical monitoring projects, redundancy planning is recommended.
The system ensures data reliability through:
Local 8GB storage backup (up to 280 million records).
Adjustable logging intervals (1–60 minutes).
Structured Excel export with daily file separation.
USB virtual disk access for offline retrieval.
Even if communication is temporarily interrupted, local storage prevents data loss.
Yes.
When connected via USB, the device generates a virtual hard disk. Data files are stored in Excel format and organized by date.
This allows direct access through standard PC systems without proprietary software dependency.
The combination of:
RS485 Modbus RTU communication
Optional DTU-4G remote transmission
GNSS positioning module
High-capacity onboard storage
allows deployment in:
Distributed river basin monitoring
Smart wastewater treatment plants
Mobile environmental inspection projects
Remote aquaculture farms
Instrava industrial pH terminals are designed to operate as independent field nodes or integrated components within larger smart water management systems.
Why Choose Instrava
By choosing Instrava, you gain a partner with a deep understanding of industrial applications and the expertise to meet today’s operational challenges.
Our role extends beyond products—we support your success through dependable solutions and long-term commitment.
Engineering-Driven Innovation
Innovation at Instrava is guided by real industrial requirements. We continuously refine our technologies to address evolving operational challenges, ensuring practical and reliable performance in demanding environments.
Application-Specific Customization
We provide engineering-level customization to match specific process conditions. From measurement range and materials to output signals and installation options, our solutions are configured to fit real applications.
Proven Quality and Reliability
Quality and reliability are fundamental to every Instrava product. Manufactured under strict quality control and thoroughly tested, our instruments deliver accurate, stable, and long-term performance.
Global Capability with Local Support
Instrava combines global engineering expertise with responsive local support, ensuring our partners benefit from internationally aligned technology and timely regional service.
Comprehensive Product Portfolio
Our broad portfolio of measurement and control instruments enables us to address a wide range of industrial needs, providing integrated solutions from a single, reliable source.
Partner-Oriented Engineering Support
We work closely with our partners from technical consultation to after-sales support. Our focus is on delivering solutions that create lasting value and support long-term operational success.
Oval Gear Flow Meter: Why It Still Dominates High-Viscosity Flow Measurement in Modern Automation
The Quiet Persistence of Oval Gear Flow Meters In an era where smart sensors, digital twins, and AI-driven instrumentation dominate...
Portable Ultrasonic Flow Meters – Accurate Industrial Flow Measurement
Portable Ultrasonic Flow Meters – Accurate Industrial Flow Measurement | Instrava Portable Ultrasonic Flow Meters Overview Portable ultrasonic flow meters...
